This study was conducted to explore the effects of honeysuckle fermented feed on the growth performance,blood biochemical indexes and intestinal fatty acid content of heat-stressed ducks.In this study,200 1-day-old Peking ducks with an average weight of(50±1)g were randomly divided into two groups,and each group was set with 5 replicates,each replicate of 20 ducklings.Randomly divided into 2 groups,the control group was fed basal diet,the experimental group was fed 20% honeysuckle fermented feed and 80% basal diet mixed diet,the test was 42 days in total,1～21 days were carried out according to the normal feeding temperature,the 21～42 days of the experiment,the ambient temperature was maintained between 33～38℃from 11:00 to 17:00 every day,the relative humidity was maintained between 65%～70%,and the rest of the time was maintained at 22～24℃.The results showed that:(1)Feeding honeysuckle fermented feed could significantly increase the ABW,ADG and ADFI of heat-stressed broiler ducks(P＜0.05),but had no significant effect on the growth performance of broiler ducks bred at 1～21 days of conventional temperature(P＞0.05),and there was a trend of decreasing the feed-weight ratio,but the difference was not significant(P＞0.05).(2)Feeding honeysuckle fermented feed could significantly increase the serum contents of IgG,IgA,IL-4,T-AOC,SOD and serum glucose in heat-stressed ducks(P＜0.05),significantly reduce the content of MDA in serum(P＜0.05),there were no significant differences in serum IgM,GSH-Px,TNF-α and other indexes(P＞0.05).(3)Feeding honeysuckle fermented feed could significantly reduce the content of short-chain fatty acids in the cecum of broiler ducks(P＜0.05).
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